diff --git a/interim/source_strings.yaml b/interim/source_strings.yaml
index 77ac2389..c5c1b9f4 100644
--- a/interim/source_strings.yaml
+++ b/interim/source_strings.yaml
@@ -3673,10 +3673,14 @@ en:
         placeholder: Unknown
         terms: '[translate with synonyms or related terms for ''Structure'', separated by commas]'
       structure_power:
+        # structure=*
         label: Structure
         options:
+          # structure=lattice
           lattice: Lattice
+          # structure=solid
           solid: Solid
+          # structure=tubular
           tubular: Tubular
       structure_waterway:
         # tunnel=*